cover base seal

filter housing base seal

base-base correlation

face seal seal joint

Dexamethasone Base，Betamethasone Base

sub-base and base

face seal machine seal

steam seal gland steam seal

(2-hydroxy-3-dodecyl dimethyl quaternary ammonium base) propyl glucosamine

(Benzylideneamino)methanesulfonic Acid Schiff Base

(MIB)management information base

(The symbol is abbreviated)-weak base

[011]orientated Ni base single crystal

1 base-5 ethernet

100 BASE-F Ethernet

14C Date Data BASE

1-formylbenzotriazole Schiff base

2- acetylpyridine schiff base copper(Ⅱ )complex

2-[(N-Salicylideneamino) Ethyl] Amine Schiff Base